Juice observed 3I/ATLAS during perihelion, when Earth-based telescopes could not. Spectroscopic observations measured water ...

Scientists in California have completed one of the first dedicated searches for signs of alien technology on 3I/ATLAS, the ...

Researchers say 3I/ATLAS could be 12 billion years old and has a composition unlike anything in our solar system.

NASA is now combining spacecraft chemistry readings with stellar catalog data to trace interstellar comet 3I/ATLAS back to ...

A new study into the 3I/ATLAS interstellar comet points to it having been born as far back as 12 billion years ago in a very ...

Astronomers first spotted Comet 3I/ATLAS in June 2025, and it was later confirmed as an interstellar visitor that originated ...

Hubble Space Telescope image of 3I/ATLAS. (NASA, ESA, David Jewitt/UCLA; Image Processing: Joseph DePasquale/STScI) All signs ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

Interstellar comet 3I/ATLAS has given astronomers an opportunity they rarely expect to receive. Unlike the countless icy ...

An interstellar comet that blazed past the sun last year could be nearly three times older than our solar system and is ...

On the 1st of July 2025, the Asteroid Terrestrial-Impact Last Alert System (ATLAS) in Chile spotted a new comet entering our solar system. This comet was named 3I/ATLAS, as it's only the third ...